Copper(II) and iron(III) complexes of N-nitroso- N- alkylhydroxylamines, and the X-ray crystal structures of bis( N-nitroso- N-isopropylhydroxylaminato)copper(II) and tris( N-nitroso- N-propylhydroxylaminato)iron(III)

Abstract

N-nitroso- N-alkylhydroxylamines have been prepared by hydrolysis of the mixture obtained by reaction of nitric oxide with Grignard reagents, and stabilized as their copper(II) or iron(III) complexes, Cu(RN 2O 2) 2 and Fe(RN 2O 2) 3, where R is, for example, Me, Et, Pr i , Bu iso, Ph, n-C 8H 17 or n-C 12H 25. The complexes have been characterized by analytical, magnetic and spectroscopic measurements. By single-crystal X-ray methods Cu(Pr i N 2O 2) 2 has been found to be trans-planar and Fe(Pr n N 2O 2) 3 has a facial octahedral structure; in each complex the NO bond lengths are equal with no significant variation between the copper and iron complexes.